Remove/install heater housing

AR83.25-D-1000TS

Remove/install heater housing

20.06.2018

Model

907, 910

Shown on model 907 with engine 651.9

3

Fitting

4

Coolant hoses

5

Air cleaner housing

Shown on model 907 with code HH2 (Electric hot-air auxiliary heater)

1

Heater housing

7

PTC heater booster

2

Blower housing

8

Hose

6

Electrical connector

9

Electrical wiring harness

 Warning

Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant.

Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers.
Wear protective gloves, protective clothing and safety glasses.

AS20.00-Z-0001-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Topical note

Notes on coolant

AH20.00-N-2080-01A

 

Remove/install

1

Release air filter housing (5) and remove from working area.

Model 907

Model 907 with engine 642

AR09.10-D-1150TSV

Model 907 with engine 651

AR09.10-D-1150TS

2

Disconnect coolant hoses (4).

 Clamp

*000589543700

3

Remove coolant hoses (4) from fitting (3).

 Collect escaping coolant using a suitable collecting pan.

 Hose clamp pliers

*454589003700

4

Seal all connection immediately with clean protective covers.

 Set of protective caps

*001589009100

5

Remove crossmember under instrument panel.

AR68.10-D-1120TS

6

Disconnect electrical connector (6) from PTC heater booster (7) and remove PTC heater booster (7) with attached electric lines from heater box (1).

Model 907, 910
with code HH2 (Electrically powered hot-air auxiliary heater)

AR83.70-D-8000TS

7

Detach hose (8) from blower housing (2).

8

Remove heater box (1) with blower housing (2) and remove from vehicle.

9

Install in the reverse order.

10

Pour in coolant and bleed engine cooling system.

Model 907 with engine 642
Model 907, 910 with engine 651

AR20.00-D-1142TSR



Check

11

Check engine cooling system for leak tightness.

Model 907 with engine 642
Model 907, 910 with engine 651

AR20.00-D-1011TS

12

Perform function test of heating.